Copeland™ Scroll YB(D) Series for Low-GWP Refrigerants of A2L Safety Class

A Reliable Scroll Compressor for High HFO Refrigerant Content

The F-Gas legislation aims to reduce direct and indirect greenhouse gas emissions, setting deadlines for OEMs and end-users to lower the GWP values of their refrigeration systems. Emerson has developed solutions for various refrigerants, such as CO2 (R744), Propane (R290), or alternatives like HFO blends / A2L refrigerants, to support this transition. Each solution is optimized for its respective refrigerant.

The Copeland™ scroll YB(D)*K1E is the new range of standard and digital compressors for medium-temperature applications. The new scroll compressor has been optimized internally and externally for F-Gas compliant low-GWP A2L safety class refrigerants, to develop the most reliable compressor for refrigerants with high HFO content.

Features and Benefits

• A range of six fixed-speed models and four digital models.
• Optimized design for F-Gas compliant low-GWP A2L safety class refrigerants.
• One model for multiple refrigerants: R455A, R454A, R454C, and R1234yf for YB models.
• Highly effective scroll technology for reduced operating costs – up to 15% higher seasonal efficiency compared to conventional semi-hermetic compressors.
• Fully hermetic design to avoid the risk of refrigerant leaks.
• Flexible in terms of required performance: various design options.
• Extremely low-noise operation, specifically suitable for urban and residential applications.
• An optional sound hood is available for an additional sound reduction of 10 to 12 dBA.
• Copeland scroll digital technology for simple, stepless capacity control in the range of 10 to 100%.
• Lightweight and compact design.
• Wide operating range with a lower condensing limit of 10°C.
• Ready for operation with CE certification under PED Cat.-II due to the high flammability of A2L refrigerants.

Applications

• Food retail: Ideal for direct and indirect expansion systems, such as compact multi-compressor packs and units.
• Food service: Cold room condensing units, remote condensing units, monoblock systems.
• Light industry: Process chillers.

Benefits of the Emerson Solution

The YB and YBD compressors are available as an A2L-ready solution for single or multiple compressor applications, and together with Emerson controls, pressure switches, expansion valves, and oil regulators. Emerson's solutions enable manufacturers to shorten their time-to-market for their systems.

Case Study: Supermarket in England saves 3.65% on Energy ?

Emerson has been conducting field trials with Copeland Scroll compressors for low-GWP A2L refrigerants since 2017. A 14,400 m² supermarket in England converted part of its existing multi-circuit systems from R448A to R454A and integrated Copeland Scroll compressors with R454A into an A2L-ready rack.

This resulted in savings of approximately 4.1 kWh per day (3.65%). Further savings of up to 4.33% are expected in the coming months.

Application Areas

The following diagrams illustrate the operational envelopes for different YB and YBD models with various refrigerants.

YB - R455A

Operational envelope for YB - R455A, showing valid condensing temperatures (°C) vs. evaporating temperatures (°C) with 10K superheat and 20°C suction gas temperature.

YBD - R455A

Operational envelope for YBD - R455A, showing valid condensing temperatures (°C) vs. evaporating temperatures (°C) with 10K superheat and 20°C suction gas temperature.

YB - R454C

Operational envelope for YB - R454C, showing valid condensing temperatures (°C) vs. evaporating temperatures (°C) with 10K superheat and 20°C suction gas temperature.

YBD - R454C

Operational envelope for YBD - R454C, showing valid condensing temperatures (°C) vs. evaporating temperatures (°C) with 10K superheat and 20°C suction gas temperature.

YB - R454A

Operational envelope for YB - R454A, showing valid condensing temperatures (°C) vs. evaporating temperatures (°C) with 10K superheat and 20°C suction gas temperature.

YBD - R454A

Operational envelope for YBD - R454A, showing valid condensing temperatures (°C) vs. evaporating temperatures (°C) with 10K superheat and 20°C suction gas temperature.

YB Models - Technical Overview

* 3-Phase: 380-420V / 50Hz

YB-Digital Models - Technical Overview

* 3-Phase: 380-420V / 50Hz